Radiator grille for an automobile



FIG. 1 is a front perspective view of a radiator grille for an automobile showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a left side elevational view, the right side being a mirror image thereof. 

The ornamental design for a radiator grille for an automobile, as shown and described. 